Apparatus and method for updating a schedule

ABSTRACT

Allowing an electronic schedule to be automatically updated by a device with the time zone where the device is presently located.

TECHNICAL FIELD

[0001] This invention relates to automatically updating a schedule by an electronic device.

BACKGROUND OF THE INVENTION

[0002] A variety of electronic devices currently allow a user to maintain an electronic schedule. Such devices consist of personal computers (PC), personal digital assistants (PDA), and wireless telephones/pagers. The problem that is faced by a frequent traveler who has a significant number of meetings on a multi-leg trip, which involves the movement through a number of time zones, is to remember to manually update their electronic schedule before the trip starts and during the trip. The need in the prior art to manually update the electronic schedule either by performing this operation for each event or adjusting the time zone information is a major problem.

[0003] Within the prior art, it is known to synchronous a scheduler maintained on a central server with the time zone of the server's location. This allows an individual in another time zone who is setting up a meeting via the participants' schedulers to automatically have the meeting time reflected on participants' schedulers in accordance with the time zones where the servers maintaining those various schedulers are located. Whereas, this prior art solution works well as long as the participants are in the same locations as their servers, it causes confusion when one or more of the participants are traveling. The traveler has to remember this fact and must also remember to mentally correct any verbal meeting time information received from other participants who may be in other time zones. A similar problem accords with respect to email transmission times that also reflect the time zone of the server being used for the email. The recipient of the email must remember that the email transmission time is that of the email server and not the time of day of the traveler's location.

SUMMARY OF THE INVENTION

[0004] The foregoing problems are solved and a technical advance is achieved by allowing an electronic schedule to be automatically updated by a device with the time zone where the device is presently located.

BRIEF DESCRIPTION OF THE DRAWING

[0005]FIG. 1 illustrates an embodiment of a wireless system for implementing the invention;

[0006]FIG. 2 illustrates an embodiment of a wired system for implementing the invention;

[0007]FIG. 3 illustrates, in flowchart form, operations performed by an embodiment of the invention;

[0008]FIG. 4 illustrates, in block diagram form, an embodiment of a device in accordance with the invention;

[0009]FIG. 5 illustrates, in block diagram form, another embodiment of a device in accordance with the invention; and

[0010]FIG. 1 illustrates another embodiment of a wireless system for implementing the invention.

DETAILED DESCRIPTION

[0011]FIG. 1 illustrates wireless device 101 establishing wireless communication with wireless system 102. When this wireless connection is established, wireless system 102 transmits to device 101 timing information. This timing information defines the time of day as well as the time zone. Similarly, FIG. 2 illustrates device 201 establishing a wired connection to local area network (LAN) 202. Once this connection is established, server 203 transmits to device 201 timing information. One skilled in the art would readily realize that LAN 202 could also be a variety of wired switching systems such as a circuit switching system, an ATM switching system, a packet switching system, or a wide area network. One skilled in the art would readily realize that wireless system 102 could be a variety of systems including a cellular system or a wireless network for data. One skilled in the art would also realize that device 101 or 201 could be a variety of devices such as personal computer, personal digital assistant, pager, or wireless telephone.

[0012] In one embodiment of the invention, the device establishes contact with an external time source and determines if the time of day from this external source is different than the time of day within the device. If there is a difference, the user is given the opportunity to accept this new time of day for updating the electronic schedule. In another embodiment, the user can not only accept the new time of day but determine a period of time over which this new time will be utilized. In another embodiment, the user is given the opportunity to utilize a travel itinerary that is stored in electronic form within the device to update the electronic schedule. In another embodiment, the user is allowed to switch between the local time as determined by the external time source or to utilize the time specified by the travel itinerary.

[0013] To better understand the various embodiments, consider the following example. In this example device 101 is a wireless PDA that a traveler is utilizing to maintain their electronic schedule. The traveler arrives at a location in a different time zone other than that currently being used by device 101. Upon establishing wireless contact with wireless system 102, device 101 receives from wireless system 102 timing information defining the time of day and the time zone. Device 101 is responsive to this timing information and displays to the user the new timing information indicating the time and time zone change, giving the user the ability to accept the utilization of this new timing information in the user's electronic schedule.

[0014] In addition, an alternate embodiment of device 101 allows the user to specify a period of time during which the new timing information will be utilized. For example, the user may only intend to remain in the new location for a day. The user would indicate that the new timing information should be utilized in the electronic schedule for one day only. This allows the user to examine their other events occurring outside the one day with the timing information that was initially recorded for these events. In addition, the user can choose to ignore the new timing information and not to alter the time shown on the electronic schedule.

[0015] The user can also create an electronic traveling itinerary. This will define the times that the user will be in various locations along with the time zone information. Device 101 can utilize this travel itinerary to automatically update the electronic schedule for the period of times covered by the itinerary. Note the user can manually override the electronic schedule defined by the itinerary or choose to override it utilizing timing information received from an external time source.

[0016]FIG. 3 illustrates, in flowchart form, operations performed by an embodiment in implementing the invention. Once started from block 300, decision block 301 determines if the user wants to synchronous their electronic schedule to a trip itinerary. If the answer is yes, block 302 updates the electronic schedule in accordance with the trip itinerary before transferring control back to decision block 301.

[0017] If the answer in decision block 301 is no, decision block 303 determines if there has been timing information received from an external source that indicates a time change. If the answer is no in decision block 303, control is transferred back to decision block 301. If the answer is yes in decision block 303, block 304 presents the new timing information to the user showing the time offset between the present time and the new timing information received from the external source as well as the new time zone. Advantageously, the external source could be a wireless system or a wired network switching system. After execution of block 304, control is transferred to decision block 306. The latter decision block determines if the user wants to accept the time offset for purposes of updating the electronic schedule. If the answer is no, control is transferred back to decision block 301.

[0018] If the answer in decision block 306 is yes, decision block 307 determines if the user wants to accept the time offset until the next sync time which would be the next contact with another external timing source. If the answer is yes, block 308 updates the whole electronic schedule before returning control back to decision block 301. If the answer is no in decision block 307, decision block 309 determines if the user wants to accept the time offset for a fixed period of time. If the answer is yes, block 311 updates the electronic schedule for this fixed period of time before returning control back to decision block 301. If the answer in decision block 309 is no, control is returned to decision block 301.

[0019]FIG. 4 illustrates, in block diagram form, an embodiment of a device which may be device 101 of FIG. 1 or device 201 of FIG. 2. Blocks 412 and 413 will only be present if the device is a wireless telephone or performing the functions of a wireless telephone. Interface 414 interfaces the device to network 416. Network 416 may be wireless system 102 of FIG. 1 or LAN 202 of FIG. 2. Interface 414 would be a wireless interface for wireless system 102 or a wired interface for FIG. 2. Processor 402 provides overall control of the interfaces and utilizes visual display and buttons 418 to receive and communicate information to the user. In one embodiment, processor 402 executes programs out of memory 401. Operating system 403 provides overall control of the device. Applications 409 provide the operations that are normally provided for this type of device. For example, if the device were a wireless telephone, applications 409 would provide the functions of a wireless telephone. Schedule control 406 provides the control for performing the operations illustrated in FIG. 3. Schedule 407 is the electronic schedule, and trip itinerary 408 is a listing of a trip itinerary. Data 404 is utilized for various forms of data. Interface routine 411 is utilized to control interface 412, 414, and 417.

[0020]FIG. 5 illustrates, in block diagram form, another embodiment of a device which may be device 601 of FIG. 6. This device has limited memory capacity and stores its schedule and trip itinerary in storage 603. Blocks 512 and 513 will only be present if the device is a wireless telephone or performing the functions of a wireless telephone. Interface 514 interfaces the device to network 516. Network 516 may be wireless system 602 of FIG. 6. Interface 514 would be a wireless interface for wireless system 602. Processor 502 provides overall control of the interfaces and utilizes visual display and buttons 518 to receive and communicate information to the user. Interface routine 511 is utilized to control interface 512, 514, and 517. In one embodiment, processor 502 executes programs out of memory 501. Operating system 503 provides overall control of the device. Applications 509 provide the operations that are normally provided for this type of device. For example, if the device were a wireless telephone, applications 509 would provide the functions of a wireless telephone. Schedule control 506 provides the control for performing the operations illustrated in FIG. 3 by using schedule 604 and trip itinerary 606 stored in storage 603 of FIG. 6. Schedule control 506 accesses schedule 604 and trip itinerary 606 stored in storage 603 via wireless system 602 in order to perform the operations of FIG. 3. Information concerning schedule 604 and trip itinerary 606 is displayed to the user of device 601 via the visual display & buttons 518. Data 504 is utilized for various forms of data including information accessed from schedule 604 and trip itinerary 606.

[0021]FIG. 6 illustrates another embodiment of a wireless system. Upon receiving a request from a wireless device, wireless system 602 can access storage 603. Storage 603 stores a plurality of schedule and trip itinerary pairs 609-611 with each pair being associated with a device of limited memory capacity such as the device illustrated in FIG. 5.

[0022] In an alternative embodiment of FIG. 2, server 203 can store schedule and trip itinerary pairs for use by devices such as the one illustrated in FIG. 5.

[0023] When the operations of devices 101, 201, or 601 are implemented in software, as is shown in FIG. 3, it should be noted that the software can be stored on any computer-readable medium for use by or in connection with any computer related system or method. In the context of this document, a computer-readable medium is an electronic, magnetic, optical, or other physical device or means that can contain or store a computer program for use by or in connection with a computer related system or method. Device 101 or 201 can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. In the context of this document, a “computer-readable medium” can be any means that can store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. For example, the computer-readable medium can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, device, or propagation medium. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic) having one or more wires, a portable computer diskette (magnetic), a random access memory (RAM) (electronic), a read-only memory (ROM) (electronic), an erasable programmable read-only memory (EPROM, EEPROM, or Flash memory) (electronic), an optical fiber (optical), and a portable compact disc read-only memory (CDROM) (optical). Note that the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured via optical scanning of the paper or other medium and then compiled, interpreted or otherwise processed in a suitable manner, if necessary, and stored in a computer memory.

[0024] In an alternative embodiment, where device 101 or 201 is implemented in hardware, device 101 or 201 can be implemented with any or a combination of the following technologies, which are each well known in the art: a discrete logic circuit(s) having logic gates for implementing logic functions upon data signals, an application specific integrated circuit (ASIC) having appropriate combinational logic gates, a programmable gate array(s) (PGA), a field programmable gate array (FPGA), etc.

[0025] Of course, various changes and modification to the illustrated embodiments described above will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the invention and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the following claims except insofar as limited by the prior art. 

What is claimed is:
 1. A method for updating an electronic schedule by a device, comprising the steps of: detecting a time zone change using information received from an external time source; and adjusting times of events stored on the electronic schedule in response to the time zone change.
 2. The method of claim 1 wherein the step of detecting comprises the steps of connecting to least one of a group consisting of a telecommunication switching system or a data switching system; receiving time zone information from at least one of a group consisting of the telecommunication switching system or the data switching system; and comparing a present time zone in use by the device with the received time zone information.
 3. The method of claim 1 further comprises the step of storing the electronic schedule in the device.
 4. The method of claim 1 further comprises the step of storing the electronic schedule in storage remote from the device.
 5. The method of claim 1 wherein the device is a personal digital assistant.
 6. The method of claim 1 wherein the device is a personal computer.
 7. The method of claim 1 wherein the device is a wireless telephone.
 8. The method of claim 2 wherein the telecommunication switching system is a wireless switching system.
 9. The method of claim 2 wherein the data switching system is a packet switching system.
 10. The method of claim 2 wherein the data switching system is communicating data for IP telephone calls.
 11. The method of claim 1 wherein the step of adjusting comprises the steps of notifying a user of the device of the time zone change; and allowing the user to determine if the electronic schedule will be adjusted for the time zone change.
 12. The method of claim 1 wherein the step of adjusting comprises the step of limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 13. The method of claim 12 wherein the step of limiting comprises the step of allowing the user to determine the portion.
 14. The method of claim 1 having an electronic trip itinerary and the method of claim 1 further comprises periodically checking the electronic trip itinerary for a time zone change; and updating the electronic schedule to reflect the time zone change based on the step of checking
 15. The method of claim 14 further comprises the step of storing the electronic trip itinerary in the device.
 16. The method of claim 14 further comprises the step of storing the electronic trip itinerary in storage remote from the device.
 17. The method of claim 14 wherein the step of updating comprises the steps of notifying a user of the device of the time zone change; and allowing a user to determine if the electronic schedule will be updated using information from the electronic trip itinerary.
 18. The method of claim 17 wherein the step of updating comprises the step of limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 19. The method of claim 18 wherein the step of limiting comprises the step of allowing the user to determine the portion.
 20. A method updating an electronic schedule stored on a device, comprising the steps of: detecting a time zone change using information stored in an electronic trip itinerary; and adjusting times of events stored on the electronic schedule in response to the time zone change.
 21. The method of claim 20 wherein the step of adjusting comprises the steps of notifying a user of the device of the time zone change; and allowing a user to determine if the electronic schedule will be adjusted using information from the electronic trip itinerary.
 22. The method of claim 20 wherein the step of adjusting comprises the step of limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 23. The method of claim 22 wherein the step of limiting comprises the step of allowing the user to determine the portion.
 24. The method of claim 23 wherein the device is a personal digital assistant.
 25. The method of claim 23 wherein the device is a personal computer.
 26. The method of claim 23 wherein the device is a wireless telephone.
 27. A processor-readable medium comprising processor-executable instructions stored in a device configured for: detecting a time zone change using information received from an external time source; and adjusting times of events stored on an electronic schedule in response to the time zone change.
 28. The processor-readable medium of claim 27 wherein the detecting comprises connecting to least one of a group consisting of a telecommunication switching system or a data switching system; receiving time zone information from at least one of a group consisting of the telecommunication switching system or the data switching system; and comparing a present time zone in use by the device with the received time zone information.
 29. The processor-readable medium of claim 27 further comprises storing the electronic schedule in the device.
 30. The processor-readable medium of claim 27 further comprises storing the electronic schedule in storage remote from the device.
 31. The processor-readable medium of claim 27 wherein the device is a personal digital assistant.
 32. The processor-readable medium of claim 27 wherein the device is a personal computer.
 33. The processor-readable medium of claim 27 wherein the device is a wireless telephone.
 34. The processor-readable medium of claim 28 wherein the telecommunication switching system is a wireless switching system.
 35. The processor-readable medium of claim 28 wherein the data switching system is a packet switching system.
 36. The processor-readable medium of claim 28 wherein the data switching system is communicating data for IP telephone calls.
 37. The processor-readable medium of claim 27 wherein the adjusting comprises notifying a user of the device of the time zone change; and allowing the user to determine if the electronic schedule will be adjusted for the time zone change.
 38. The processor-readable medium of claim 27 wherein the adjusting comprises limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 39. The processor-readable medium of claim 38 wherein the limiting comprises allowing the user to determine the portion.
 40. The processor-readable medium of claim 27 having an electronic trip itinerary and the processor-readable medium of claim 27 further comprises periodically checking the electronic trip itinerary for a time zone change; and updating the electronic schedule to reflect the time zone change based on the checking
 41. The processor-readable medium of claim 40 further comprises storing the electronic trip itinerary in the device.
 42. The processor-readable medium of claim 40 further comprises storing the electronic trip itinerary in storage remote from the device.
 43. The processor-readable medium of claim 40 wherein the updating comprises notifying a user of the device of the time zone change; and allowing a user to determine if the electronic schedule will be updated using information from the electronic trip itinerary.
 44. The processor-readable medium of claim 43 wherein the updating comprises limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 45. The processor-readable medium of claim 44 wherein the limiting comprises allowing the user to determine the portion.
 46. A processor-readable medium comprising processor-executable instructions stored in a device configured for: detecting a time zone change using information stored in an electronic trip itinerary; and adjusting times of events stored on the electronic schedule in response to the time zone change.
 47. The processor-readable medium of claim 46 wherein the adjusting comprises notifying a user of the device of the time zone change; and allowing a user to determine if the electronic schedule will be adjusted using information from the electronic trip itinerary.
 48. The processor-readable medium of claim 46 wherein the adjusting comprises limiting the adjustment of the electronic schedule to only a portion of the electronic schedule.
 49. The processor-readable medium of claim 48 wherein the limiting comprises allowing the user to determine the portion.
 50. The processor-readable medium of claim 49 wherein the device is a personal digital assistant.
 51. The processor-readable medium of claim 49 wherein the device is a personal computer.
 52. The processor-readable medium of claim 49 wherein the device is a wireless telephone.
 53. A device for maintaining an electronic schedule, comprise: a memory for storing program instructions; a network interface for connecting to at least one of a telecommunication switching system or a data switching network; a processor for executing ones of the program instructions to obtain local time zone information via the network interface from the at least one of the telecommunication switching system or the data switching network; and the processor further executing other ones of the program instruction to adjust times of events stored in the electronic schedule in response to the local time zone.
 54. The device of claim 53 wherein the memory further storing the electronic schedule.
 55. The device of claim 53 wherein storage remote from the device stores the electronic schedule.
 56. The device of claim 53 is a personal digital assistant.
 57. The device of claim 53 is a personal computer.
 58. The device of claim 53 is a wireless telephone.
 59. The device of claim 53 wherein the processor periodically checks a electronic trip itinerary for a time zone change; and the processor updates the electronic schedule to reflect the time zone change based on the checking
 60. The device of claim 59 wherein the memory further storing the electronic trip itinerary.
 61. The device of claim 59 wherein storage remote from the device stores the electronic trip itinerary.
 62. The method of claim 59 further comprises a user interface and the processor notifies a user of the device of the time zone change via the user interface; and the processor allows a user to determine via the user interface if the electronic schedule will be updated using information from the electronic trip itinerary. 